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Muscle fiber size distribution after 14 and 42 days of recovery from bupivacaine-induced injury, with or without nandrolone decanoate (ND) administration. Fiber distribution is shown for 14-day uninjured and injured (A) and injured and injured + ND (B) groups, and 42-day uninjured and injured (C) and injured and injured + ND (D) groups. †Difference in the percentage of small (<1,000 μm2) or large (>3,500 μm2) fibers, P ≤ 0.05.
